From Destiny 2 Wiki
|Prerequisite||Unlocked by default.|
|Description||Throw a rope dart that bounces between targets, damaging and severing them. The dart will return to you once it's done, returning melee energy to you for each target hit. Press [Melee] just as the dart gets back to you to catch it and increase the amount of energy returned.|
Threaded Spike is a melee ability used by the Threadrunner subclass. It is unlocked by default.